Plate-holder.



JOHN J'. KING, 0F BOSTON, MASSACHUSETTS.

PLATE-Homan.

Bpeoication of Letters Patent.

' Patented Dee. 19, 1916.

Application led Hay 3l, 1916. Serial No. 100,953.

To all whom it may concern.' Be it known that I, JOHN J. KING, a citizen of the United States residing at Boston, in the county of Suiiolk and State of- Massachusetts, have invented certain new and useful VImprovements in Plate-Holders, of which the following is a specification. My invention relates to plate holders for cameras and particularly to improvements in the construction of the plate supports of such holders, the object of the invention being to provide an improved plate supplort of that type which is constructed wit a drip catch into which the fluid from a wet plate drains when the latter is placed in the holder.

It is also the object of my invention to prf vide an imp roved support of the character indicated which may be used in a plate holder of ordinary construction and which will protect the latter from the fluid betas heretofore constructed.

' It has heretofore been proposed to,con-' 25 f 1 f holder with a drip catching trough an eculiarly shaped and inclined -surfaces ingt--thej-holder 's1 awmwhilefhnndling it waathermathutftheeuia ,conpaeaiwahf in the trough will all 11m diiwl @O ithe jlewerfj end of 'thetrcmgh andoverow`-gonto the? frame sotliat the latter is soon-destroyed. :31" My inventiony 'alsofhas atei-1"its,,clerical-. to.

ter and more eectively than plate supports struct' the plate supporting bar of a late 0I' directing the drip ings into 'said trough as shown and descri ed, for example, in the patent to Levy, No. 1,003,117 5, granted Sep- *amber-19, 1911. The disadvantage to such a construction, however'is .that itfdoes-not eii'ectually: protect the rattle-'cfg` the. holder obviate' this objectionablefdf Tothe ends my inventitnfcamisa-,0f a' plate rsup rt" for plate holders' embodyin the ffeatur'es of construction and mode of'operationjset forth in the followin descri tionand rticularly pointed out an defn in thee aims at thegclose thereof.

In theaccompanying drawings: 1;

is an elevation of 'aplate su porting" `bal' constructed inv accordance wi v tion. 'Fig'. 2i is a plan view `of the sup frame bein shown 1n sectionat each. end thereof. Fig. 3 'is n. 'section on line 8-3 of Fig. 1. Fig. 4 is an elevation of the lower Alaides of the portion of a plate holder for cameras rovided with a late support constructe in accordance wit my invention.

Having reference to the drawings, 1 represents the frame of a plate holder for,` cameras, 2 the usual adjustable top plate holding bar and 3 my new plate sup orting bar or rest. The two vertlcal side Agars of the frame l are made upon their inner sides with sockets 4 to receive the usual lugs or projections 5 provided at the ends of the plate supporting bar 3 which provides for adjustment of bar 3 lengthwise of the frame as usual, in orderto accommodate plates of different len hs.

y im roved plate supporting -bar 3 is made wit an interior longltudinal chamber or trough 6 extending from end to end of the bar except that said trough is closed at its ends by end walls 7. Immediatel above the trou h 6 the bar is provided with a top Wall 8 w ose front edge 9 is to the rear of the front wall 10 of the bar so as to leave a slot 11 between said wall and front edge. The front edge 9 of top wall 8 is provided at intervals throughout its length with forwardly projecting lugs 12 that are adapted to support a plate as indicated by dotted lines in Fi 3. 'These lugs 12 extend nearly-up to the plane of the outer surface of front wall 10 and to the latter are secured a nnmberof metal plates 13 whose u per endsextend slightly above the plane o the to A'surface ofl the plate su porting lugs 12. T ese plates 13 are quite t in and when the plate mis in proper position on the lugs 12 itrests near its lower edge against the rear lates and therefore its front sensitized sur ace is very close to the screen, not shown, which will be immediately in front of wall 10.

The top wall 8 is part of a separate metal strip more or less shaped like an angle iron and having one web thereof secured by screws 14 to the rear wall 15 of bar 3.

In order that the plate :o will assume and maintain, a position immediately to the rear of plates 13 and over slot 11 the top surface of-wall 8 is made so as to slant downwardlyA itnward thefrontas shown in Fig. 3, and Inma* ort `j, shown in Fig. 1,'pa'1't of vthev platehoder this slanting topV surface also serves to cause liquid collecting'thereon from the wet plate a: to flow by gravity down the same to the slot 11 where it falls into the trough 6. It will also be clear that all liquid drippin from the plate :v will fall directly throug tually reach and slot 11 into the trough. The top edge of the front wall 10 is beveled downwardly toward trough 6 so that any drippings landing thereon will be directed by gravityinto the trough. It will thus be clear that whatever liquid is shed by the plate after it is placed in the holder either fallsdirectly into the trough or is directed into the same by the slanting surfaces 16 and 17 and consequently none of the li uid can trickle down upon Ithe outside of t e bar and eveninjure the frame of the holder.

At the bottom of the trough 6 the interior of the hollow bar 3 is divided transversely by a plurality of partitions 18 which provide a plurality of pockets 19 within which the liquid collects and these partitions serve to prevent the collected liquid from flowing back and forth endwise of the bar when the latter is tilted with the frame in handling the latter. Heretofore most devices of this character have been constructed so as to effectively collect the drippings from the plate but in handling the frame in carrying it to the camera, placing it in the latter, removing it from the camera and carrying it back to the dark room from the camera, the frame would be tilted and the collected liquid could all run down or lengthwise of the bar to one end of the latter and overflow onto the frame. The transverse partitions 18 prevent this occurring when my improved bar is tilted endwise and the operator does not have to exercise nearly so much care 1n handling the frame as required.

The main portion or body of my improved bar may be an aluminum casting as may also the top wall 8 with its attaching flange. The plates 13 may be made from sheet aluminum.

that I claim is:

1. 'A plate support formed with a plurality of pockets and rovided with means for directing into said pockets the fluid thaty drips from .the plate.

2. A plate support formed with a drip catching gutter and with a plurality of pockets into which the iuid that drips from the plate is directed by said gutter.

has heretofore been 3. A plate supporting bar provided at its ends with means for engaging the frame of a plate holder, said bar being formed with a drip catching tter extending longitudinally thereof an with a plurality of pockets into which the fluid that drips from the plate is directed by said gutter.

4. A plate supporting bar provided at its ends with means for engaging the frame of a plate holder, said bar bein formed with a drip catching gutter exten ing longitudinally thereof and with a series of pockets extending longitudinally thereof into which the fluid that drips from the plate is directed by said gutter. v

5. A plate supporting bar comprising means for engaging the frame of a plate holder, a drip catching gutter extending longitudinally of said bar, a longitudinal series of pockets into which the fiuid that drips from the plate is directed by the gutter, and a plurality of plate rests connected 'with said bar for holding a plate in position thereon.

6. A plate supporting bar having an inclined top side and comprising means for engaging the frame of a plate holder, a longitudinal drip catching gutter extending outwardly beyond the lower side of the inclined top of the bar, a series of pockets into which the fluid that drips from the plate is directed by the gutter, and a plurality of plate rests connected with said bar and overhanging said gutter.

7. A plate supporting bar grooved longitudinally to `form a drip catching 'gutter and bored transversely to form a plurality of pockets into which the fluid that drips from the plate is directed by said gutter.

8. A plate supporting bar for plate holders grooved longitudinally to provide a drip catching gutter` at one side thereof, and bored transversely to provide aplurality o pockets at the bottom of said gutter into which the fluid that drips from the plate is directed by the gutter, and a plurality of plate rests connected with said bar and over- .anging said. gutter.

In testimony whereof l have ailixed my signature.

J OHN J. KING. 

